$fn=100;
difference(){
    minkowski(){
        union(){
            cylinder(h=2.5,d=20);
            translate([0,-10,0]) cube([40,20,2.5]);
        }
        sphere(0.5);
    }
    minkowski(){
        
        cylinder(h=2.5,d=8);
        sphere(0.5);
    }


    translate([5,-4,2]) linear_extrude(2) text("小魔头",size=8,font="STXingkai:style=Regular");
}